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Object digitizing device using integrating sphere wave source

外国特許コード F110003144
整理番号 A101-16WO
掲載日 2011年6月17日
出願国 アメリカ合衆国
出願番号 57540505
公報番号 20080002385
公報番号 7535559
出願日 平成17年8月17日(2005.8.17)
公報発行日 平成20年1月3日(2008.1.3)
公報発行日 平成21年5月19日(2009.5.19)
国際出願番号 JP2005014977
国際公開番号 WO2006030597
国際出願日 平成17年8月17日(2005.8.17)
国際公開日 平成18年3月23日(2006.3.23)
優先権データ
  • 特願2004-270668 (2004.9.17) JP
  • 2005WO-JP14977 (2005.8.17) WO
発明の名称 (英語) Object digitizing device using integrating sphere wave source
発明の概要(英語) (US7535559)
An object image digitizing device using an integrating sphere wave source is provided which makes the degree of spatial uniformity and temporal stability of the spatial uniformity of the wave irradiation distribution over the output port surface of the integrating sphere for illumination of the transmissive object as precise as the degree of the digitalization requires.
特許請求の範囲(英語) [claim1]
1. An object image digitizing device using an integrating sphere wave source comprising;
(a) an integrating sphere, without any spatial opening, the integrating sphere including a smooth continuous non-directional reflective layer formed on an internal surface of the integrating sphere to provide spatially uniform and temporally stable light or waves to a transmissive object to be digitized;(b) a partially-transparent and partially-reflective input port of the light and waves of the integrated sphere created by making a part of the reflective layer thinner than other parts of the layer through which the original external light and waves are configured to enter into the sphere so that the input port permits light or waves to pass through as well as to reflect light and waves toward the internal space of the sphere but keeping the internal distribution of the light and waves inside the sphere uniform and stable;(c) a partially-transparent and partially-reflective output port of the light and waves of the integrated sphere created by making a part of the reflective layer thinner than other parts of the layer through which internal light or waves are configured to escape from inside of the sphere to illuminate the transmissive object so that the output port permits light or waves to pass through as well as to reflect light and waves toward the internal space of the sphere but keeping the internal distribution of the light and waves inside the sphere uniform and stable;(d) a transmissive object mounting assembly for the transmissive object placed near the output port;
and(e) a two-dimensional imaging device for imaging the transmissive object placed on the mounting assembly and converting the object image into digital form,wherein the sphericity of the shape of the internal non-directional reflective layer is provided such that the internal distribution of the light and waves inside the sphere is made spatially uniform and temporally stable to a precision degree that the digitization requires.
[claim2]
2. The object image digitizing device using an integrating sphere wave source in accordance with claim 1, further comprising: a means for controlling a temperature and a pressure distribution of external environment of the integrating sphere wave source in order to keep the sphericity of the integrating sphere to the precision degree that the digitization requires.
[claim3]
3. The object image digitizing device using an integrating sphere wave source in accordance with claim 1, wherein the wave source is a device for generating waves including visible light, electromagnetic waves, waves due to mass motion of a medium such as sound, and waves accompanied by quantum mechanical wave-particle dual nature of particles including electrons and the like.
[claim4]
4. The object image digitizing device using an integrating sphere wave source in accordance with claim 1, wherein the integrating sphere is made of deformable material in order to keep the sphericity of the shape of the integrating sphere as temporally precise as the precision degree of the digitization requires by actively adjusting actuators to provide spatially uniform and temporally stable light and waves to a transmissive object to be digitized at the output port of the integrating sphere, and characterized by comprising a spherical solid cover to surround the integrating sphere with a space outside the integrating sphere, and adjustment bolts protruding outside the integrating sphere and passing through the spherical cover, the bolts being driven by the active actuators arranged on the top thereof.
[claim5]
5. The object image digitizing device using an integrating sphere wave source in accordance with claim 4, further comprising multiple device for supplying original wave source in the space between the solid cover and the integrating sphere in order to feed the original waves into the integrating sphere.
[claim6]
6. The object image digitizing device using an integrating sphere wave source in accordance with claim 5, wherein a cooling fluid is configured to be circulated through the space.
[claim7]
7. The object image digitizing device using an integrating sphere wave source in accordance with claim 6, wherein the device is configured to supply original wave source on the down stream side of said cooling fluid.
[claim8]
8. The object image digitizing device using an integrating sphere wave source in accordance with claim 1, wherein the integrating sphere wave source includes multiple similar integrating sphere wave sources connected in cascade configuration in order to achieve the precision that the digitization requires.
[claim9]
9. The object image digitizing device using an integrating sphere wave source in accordance with claim 1, wherein the thickness distribution, shape and material of the partially-transparent and partially-reflective layer at the output and input ports of the waves are and can be modified so that the precision degree that the digitization requires is achieved and maintained.
[claim10]
10. The object image digitizing device using an integrating sphere wave source in accordance with claim 1, wherein the time variation of the spatial distribution of the illumination or the object to be digitized over the output port of the integrating sphere is controlled and maintained to a level lower than the digital accuracy resolution of the two-dimensional imaging device can represent.
[claim11]
11. The object image digitizing device using an integrating sphere wave source in accordance with claim 1, wherein the high digital accuracy resolution is achieved by keeping the time variation of illumination on the object to be digitized over the output port of the integrating sphere to less than 1/104 and by performing more than 16 bits of quantization of digitization of the two-dimensional imaging device.
  • 発明者/出願人(英語)
  • YOSHIMURA HIROKAZU
  • JAPAN SCIENCE AND TECHNOLOGY AGENCY
国際特許分類(IPC)
米国特許分類/主・副
  • G01J001/08
  • H04N001/028E2D
  • H04N001/028E
  • H04N001/10
  • T04N001/195
  • T04N201/04B3
参考情報 (研究プロジェクト等) CREST Mechanism of Global Change AREA
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